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<title>Debugging with GDB: Annotations for Running</title>

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<a name="Annotations-for-Running"></a>
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<p>
Next: <a href="Source-Annotations.html#Source-Annotations" accesskey="n" rel="next">Source Annotations</a>, Previous: <a href="Invalidation.html#Invalidation" accesskey="p" rel="prev">Invalidation</a>, Up: <a href="Annotations.html#Annotations" accesskey="u" rel="up">Annotations</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Concept-Index.html#Concept-Index" title="Index" rel="index">Index</a>]</p>
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<hr>
<a name="Running-the-Program"></a>
<h3 class="section">28.6 Running the Program</h3>
<a name="index-annotations-for-running-programs"></a>

<a name="index-starting-annotation"></a>
<a name="index-stopping-annotation"></a>
<p>When the program starts executing due to a <small>GDB</small> command such as
<code>step</code> or <code>continue</code>,
</p>
<div class="smallexample">
<pre class="smallexample">^Z^Zstarting
</pre></div>

<p>is output.  When the program stops,
</p>
<div class="smallexample">
<pre class="smallexample">^Z^Zstopped
</pre></div>

<p>is output.  Before the <code>stopped</code> annotation, a variety of
annotations describe how the program stopped.
</p>
<dl compact="compact">
<dd><a name="index-exited-annotation"></a>
</dd>
<dt><code>^Z^Zexited <var>exit-status</var></code></dt>
<dd><p>The program exited, and <var>exit-status</var> is the exit status (zero for
successful exit, otherwise nonzero).
</p>
<a name="index-signalled-annotation"></a>
<a name="index-signal_002dname-annotation"></a>
<a name="index-signal_002dname_002dend-annotation"></a>
<a name="index-signal_002dstring-annotation"></a>
<a name="index-signal_002dstring_002dend-annotation"></a>
</dd>
<dt><code>^Z^Zsignalled</code></dt>
<dd><p>The program exited with a signal.  After the <code>^Z^Zsignalled</code>, the
annotation continues:
</p>
<div class="smallexample">
<pre class="smallexample"><var>intro-text</var>
^Z^Zsignal-name
<var>name</var>
^Z^Zsignal-name-end
<var>middle-text</var>
^Z^Zsignal-string
<var>string</var>
^Z^Zsignal-string-end
<var>end-text</var>
</pre></div>

<p>where <var>name</var> is the name of the signal, such as <code>SIGILL</code> or
<code>SIGSEGV</code>, and <var>string</var> is the explanation of the signal, such
as <code>Illegal Instruction</code> or <code>Segmentation fault</code>.  The arguments
<var>intro-text</var>, <var>middle-text</var>, and <var>end-text</var> are for the
user&rsquo;s benefit and have no particular format.
</p>
<a name="index-signal-annotation"></a>
</dd>
<dt><code>^Z^Zsignal</code></dt>
<dd><p>The syntax of this annotation is just like <code>signalled</code>, but <small>GDB</small> is
just saying that the program received the signal, not that it was
terminated with it.
</p>
<a name="index-breakpoint-annotation"></a>
</dd>
<dt><code>^Z^Zbreakpoint <var>number</var></code></dt>
<dd><p>The program hit breakpoint number <var>number</var>.
</p>
<a name="index-watchpoint-annotation"></a>
</dd>
<dt><code>^Z^Zwatchpoint <var>number</var></code></dt>
<dd><p>The program hit watchpoint number <var>number</var>.
</p></dd>
</dl>




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